The study also aims to understand the shear contribution of concrete, shear strength due to steel bars and steel stirrups and the additional shear capacity due to glass fiber reinforced polymer strips in a RC beam.
The formulation includes the contribution of the shear deformation and the variation of the radius over the thickness of the shell.
The slenderness ratio was varied in the range 10 65, in order to highlight the contribution of the shear deformation to the structural response.
It has been clearly established that the contribution of FRP to shear resistance depends on the amount of internal shear-steel reinforcement.
Several major factors which influence debonding of FRP and hence the contribution of FRP to shear resistance have been identified (e.g., bond model, FRP effective strain, shear crack angle and FRP effective anchorage length).
Table 4 presents the calculated contribution of FRP to shear, Vf cal, using the proposed model and each of the standard codes and guidelines versus the experimental contribution of FRP to shear, Vf exp.
The effect of shear deformation on the total deflection of reinforced concrete beams has also been investigated, and the contribution of shear deformation to the total deflection of beam have been theoretically obtained in the case of various loading case by using the developed computer program.
The experimental findings are presented and discussed in this paper, with emphasis on the observed failure mode, shear strength, deformation capacity, and strength degradation characteristics of the walls tested, as well as the contribution of shear, flexural, and sliding deformations to wall lateral displacements.
Contribution of FRP to shear.
Open image in new window Fig. 6 Contribution of shear deformation on member deflection.
